Adjustable bed



, No Model.) -3 Sheets-Sheet 1.

H.'.' M. MARTIN. ADJUSTABLE BED.

'No. 603,651. v Patented May 101; 1898.

(No Model.) 3 Shets-Sheet 2.

H. M. MART-IN. ADJUSTABLE BED.

No. 603,651. PatentedMay 10, 1898.

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{No Model.) 3'Sheets-Sheet 3 M. MARTIN.

ADJUSTABLE BED.

N0.'603,651..' Patented May 10,1898.

UNITED STATES PATENT OF IcE.

HENRY- M. MARTIN, OF NEWARK, OHIO.

ADJUSTABLE BEID.

SPECIFICATION forming part of Letters Patent No. 603,651, dated May 10, 1898.

Application filed November 29, 1897- serial No- 6 60,141. (No model.)

frame may be readily elevated to any desired extent, inclined at any desired angle, and may be either provided with a spring-bottom or be detached therefrom.

As will more clearly appear from an inspec-' tion of the drawings and from the detailed description to follow, my improved bed may be very readily adjusted. It is simple in construction and contributes in many ways to the comfort and convenience of both-the occupant and the attendant. The bed is especially adapted for hospital use; but it is suitable for use in other places. In the accompanying drawings, Figure 1 is a perspective view of my improved adjustable bed. Fig. 2 is a plan view thereof with some of the parts broken away the more clearly to illustrate other parts. Fig. 3 shows a longitudinal central section on the line 3 3 of Fig. 2. Fig. 4 is a detail view in perspective of one of the devices for locking the hinge which connects the adjustable head-piece of the vertically-adjustable bed to the main 'fram thereof. v

The stationary supporting frame} A is mounted on legs or standards B, which may be hinged at b, so that they may bejfolded in well-known ways. The frame 0 of the vertically-adjustable bed is supported at the front. or head by S-shaped springs D, secured to the side rails of the frame A and to the under sides of the side rails of the hinged head portions E of the vertically-adjustable bed.

These springs are stout and strong and can freely act to hold the bed in the elevated position shown in Fig. 1. They are sufliciently strong not only to supportthe bed, but ,also an occupant thereof. They not only lift the hinged head portion thereof, but the entire bed.

The head E is hinged to the body portion of the bed by hinges F, of any approved construction, and I employ sliding bolts G, operating through loops 9, as indicated in Figs. 3 and 4:. When the bolts are withdrawn, as indicated in Fig. 3, the head E may be tilted or inclined relatively to the remainder of the bed and without elevating the lower portion thereof, the springs D serving to support the head, as indicated in Fig. 3; but when the bolts are moved in the opposite direction, as indicated in Fig. 4, their inner ends pass through the loops 9 and lock the hinges, so that the head E will be maintained in line with the lower portion of the bed, and the springs D will support the entire bed-frame in the manner illustrated in Fig. 1. The bolts may be of'any suitable construction, as shown. The inner ends are Wide and fiat, giving the requisite strength without being unnecessarily bulky, and the outer ends are provided with knobs or handles G, and springs g are employed, if desired, to shoot the bolts inwardly to cause them to pass through the loops and lock the hinges. I do not, however, consider the use of springs for this purpose essential. In order to hold the bed 0 down in a horizontal position or at any desired elevation at the head, I employ a Windlass consisting of a roller H, operated by a crank H and pawland-ratchet mechanism H The rolleris connected to'the end of the frame of the adjustable bed by means of straps or bands H By means of this mechanism the bed may readily be held at any desired position at the head.

In order to adjust the lower end or foot end of the bed, I provide a frame I, consisting of vertical bars 11 and a cross-bar i. The bars i are slotted at 1' and notched at 1?. Through these siots extend studs or pins 2", secured to the side rails of the bed. The bed may be lifted,causing the studs or pins 2' to pass along the slots 6 and the bed may thenbe moved longitudinally, so as to cause the studs to pass into the notches '6 In this way the bed may be held in any desired elevation in an obvious manner.

I also employ supplemental devices for I holding the bed in the adjusted position. These are so constructed that they may be readily operated and will hold the bed in place should the pawl-and-ratchet mechanism be in any way-disturbed. As shown, these devices consist of arms J, having hooked ends j, extending from the side rails of the bed and connecting with ahorizontal bottom piece j, having crank-arm J, to which is connected the downwardly-projecting end it of a longitudinal rod K. The hooked en dsj are adapted to operate in notches cin the side rails of the bed and when properly adjusted will hold the bed against further vertical movement. The rod K slides in guides It on the lower or main supporting-frame.

The frame of the vertically-adjustable bed is shown as covered with strips of fabric M, which act like a stretcher. I have provided a,frame N, which supports a series of rows of springs O, that are adapted to support the strips M, and to thereby provide a spring bedbottom of the most approved and'comfortable kind.

- purpose I employ sliding bolts P, which pass through perforations in the frame of the adj ustable head E, as indicated in Figs. 2 and 3, and also through perforations in the transverse end piece of the frame N, as shown in Fig. 2. These bolts are preferably spring-operated, the springs 10 tending to shoot the bolts inwardly, so as to lock the spring-carrying frame to the frame of the adjustable bed. By these instrumentalities the bed may be given all the desired adjustments in a very simple and efficient manner. be held at any desired inclination. 'Atits lower end the bed is lifted by the attendant; but the weight at the lower end or foot is comparatively small. The weight at the head is carried by the springs, and these springs do all the lifting that there is to do. An attendant can readily lower the head of the bed by the Windlass and pawl-and-ratchet mechanism.

The operation of connecting and disconnecting the spring-carrying frame and the frame of the bed is a very simple one. The bed may be either lowered to come into line with the spring-carrying frame or the springcarrying frame may be elevated to meet the bed, when the spring-bolts may be properly adjusted.

So far as-I am aware I am the first to provide a bed of this kind in which a spring-carrying frame is detachably connected with the frame of the vertically-adj ustable bed, so that the spring-carrying frame may be either elevated with the bed or left behind when the bed is elevated.

My improved bed is especially adapted for hospital service, and it may be equipped with the usual accompaniments of such beds. It is well adapted for all service of this kind; but some-of my improvements may with advantage be used in household beds.

The frame N is connected to the frame 0 by the bolts P and by pivot-screws n. By

The bed may withdrawing the bolts and removing the screws n the frame N, with its springs, may be removed and placed on any bed. This is a convenience, as it is sometimes desirable to use the springs on a bedstead not having the adjustable features of the bed herein shown and described.

I claim as my invention 1. The combination of the main supportingframe, the frame of the adjustable bed hinged to the main supporting-frame, a hinged head portion, means for locking the hinges to rigidly connect the head portion with the foot portion of the bed, and springs for elevating the entire frame of the adjustable bed placed beneath the head portion thereof and attached to the main supporting-frame.

2. The combination of a main supportingframe, a hinged adjustable bed-frame having a hinged head portion, and sliding bolts movable across the hinge of the head portion for locking the hinges, in combinationwith springs'of sufficient strength to support the entire frame of the bed, and also the occupant thereof, placed beneath the head portion of the adjustable frame, and secured to the main supporting-frame.

3. The combination of the main supportingframe, the vertically-adjustable bed and the spring-supporting frame detachably connected therewith.

4.. The combination of the main supportingframe, the vertically-adjustable bed, means for holding it at the desired elevation, a frame provided with a series of rows of bed-springs, and means for detachably connecting the spring-carrying frame with the frame of the adjustable bed.

5. The combination of the main supportingframe, the frame of the vertically-adjustable bed hinged thereto at the foot, a spring-carrying frame hinged to the frame of the adjustable bed at the foot thereof, a series of rows of bed-springs carried by said springcarrying frame and bolts for connecting the frame of the verticallyeadjustable bed with the spring-carryin g frame.

6. The combination of the main supportingframe, the frame of the vertically-adjustable bed provided with a hinged head-piece, sliding bolts for locking the hinges thereof,

springs for elevating and supportingthe bed,

and also the occupant thereof, placed under the adjustable frame and secured to the main rows of notches, studs or pins secured to the side rails of the frame, and adjustable in said notches means for elevating and depressing the bed at the head, the hooked arms adapted to engage notches on the side rails of the adjustable bed, the cross-rod to which they are connected, the crank on said cross-rod and a longitudinal operating-bar connected with said crank.

8. The combination of the main supportingframe, the vertically-adj ustable bed, the slotted notched frame secured to the foot end of the main supporting-frame, studs or pins on the foot of the vertically-adjustable bed extending into said slots and notches, and Vertically adjustable therein, a spring-carrying HENRY M. MARTIN.

Witnesses:

JOSEPH BENZ, WILLIAM C. MILLER. 

